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Full vulnerability report · 2022
CVE-2022-45937High confidence

Siemens APOGEE PXC Compact (BACnet) — Improper Access Control

Siemens · APOGEE PXC Compact (BACnet)

8.8HighCVSS 3.1
Recommended action
Within 7 days

High technical severity; prioritise exposed affected systems while verifying vendor guidance.

Patch available
Direct vendor intelligence

Authoritative vendor CSAF and VEX advisories

Structured product status and remediation from the issuing vendor. Product-state explanations are always visible; large lists can be searched or downloaded.

1 current
SSA-180579 · CSAF 2.0 · revision 2 · interimSiemens ProductCERTSSA-180579: Privilege Management Vulnerability and Multiple Nucleus RTOS Vulnerabilities in APOGEE/TALON Field Panels before V3.5.5/V2.8.20
6 known affected

The vendor explicitly identifies these products as affected by this CVE.

  • APOGEE PXC Compact (BACnet)
  • APOGEE PXC Compact (P2 Ethernet)
  • APOGEE PXC Modular (BACnet)
  • APOGEE PXC Modular (P2 Ethernet)
  • TALON TC Compact (BACnet)
  • TALON TC Modular (BACnet)
Summary
A low privilege authenticated attacker with network access to the integrated web server could download sensitive information from the device containing user account credentials.
Remediation
Update to V2.8.20 or later version
Optional official sources

National CERT insights
?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

Select the national-authority views to include. The exact source language is shown on each matched advisory. Your choice is remembered on this device and encoded in the shareable URL.

Official European source

ENISA European Vulnerability Database

Official EUVD identifiers, advisory evidence and known-exploited context. Missing fields are not treated as evidence of low risk.

1 current
ENISA EUVD identifier

EUVD-2022-48779

No EUVD known-exploited evidence

ENISA has published the identifier mapping but no EUVD description has been stored yet.

EUVD state
Present in the current official mapping
Known exploitation
Not present in the current ENISA EUVD known-exploited dataset. This is not proof of no exploitation.
ENISA score
Not supplied in the stored EUVD record
Advisory evidence
No linked advisory details stored yet
Recommended actionWithin 7 days

High technical severity; prioritise exposed affected systems while verifying vendor guidance.

Patch available
01

What, why and how

A vulnerability has been identified in APOGEE PXC Compact (BACnet) (All versions < V3.5.5), APOGEE PXC Compact (P2 Ethernet) (All versions < V2.8.20), APOGEE PXC Modular (BACnet) (All versions < V3.5.5), APOGEE PXC Modular (P2 Ethernet) (All versions < V2.8.20), TALON TC Compact (BACnet) (All versions < V3.5.5), TALON TC Modular (BACnet) (All versions < V3.5.5). A low privilege authenticated attacker with network access to the integrated web server could download sensitive information from the device containing user account credentials.

What

A vulnerability has been identified in APOGEE PXC Compact (BACnet) (All versions < V3.5.5), APOGEE PXC Compact (P2 Ethernet) (All versions < V2.8.20), APOGEE PXC Modular (BACnet) (All versions < V3.5.5), APOGEE PXC Modular (P2 Ethernet) (All versions < V2.8.20), TALON TC Compact (BACnet) (All versions < V3.5.5), TALON TC Modular (BACnet) (All versions < V3.5.5). A low privilege authenticated attacker with network access to the integrated web server could download sensitive information from the device containing user account credentials.

Why

The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

How

An attacker operating through a network path may attempt exploitation with low privileges. If successful, the issue may obtain information outside the intended access boundary.

What

A vulnerability has been identified in APOGEE PXC Compact (BACnet) (All versions < V3.5.5), APOGEE PXC Compact (P2 Ethernet) (All versions < V2.8.20), APOGEE PXC Modular (BACnet) (All versions < V3.5.5), APOGEE PXC Modular (P2 Ethernet) (All versions < V2.8.20), TALON TC Compact (BACnet) (All versions < V3.5.5), TALON TC Modular (BACnet) (All versions < V3.5.5). A low privilege authenticated attacker with network access to the integrated web server could download sensitive information from the device containing user account credentials.

Why

The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

How

An attacker operating through a network path may attempt exploitation with low privileges. If successful, the issue may obtain information outside the intended access boundary.

02

Exploit reality and attack path

CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.

Observed exploitation
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
No confirmed evidence

No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.

Public PoC / exploit material
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
None recorded

No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.

Likely attack path
a network path → Improper Access Control → obtain information outside the intended access boundary
Attack surface
Network
Privileges required
Low: a basic authenticated account is required
User interaction
None
Attack complexity
Low: no specialised conditions are recorded
Security boundary
Unchanged: impact remains within the vulnerable component's security authority
Weakness
?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-284 ↗

CWE-284: Improper Access Control. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C

Common Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.

AVNetworkAttack vector: The vulnerable component can be reached over a network.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRLowPrivileges required: The attacker needs basic user-level privileges.UINoneUser interaction: No action by another user is required.SUnchangedScope: The security impact remains within the vulnerable component's authority.CHighConfidentiality impact: A successful attack can cause a major loss.IHighIntegrity impact: A successful attack can cause a major loss.AHighAvailability impact: A successful attack can cause a major loss.
Post-exploitation / living off the land
Stolen credentials, tokens and legitimate administration functions may provide continued access without deploying a large custom toolset.
NetworkCWE-284
A

Official authority intelligence

Only matched European and national findings are included. Language selectors and unavailable sources are omitted.

CERT-FR · French · CERTFR-2023-AVI-0633Multiples vulnérabilités dans les produits Siemens

ord?id=CVE-2020-27738 Référence CVE CVE-2020-28388 https://www.cve.org/CVERecord?id=CVE-2020-28388 Référence CVE CVE-2021-25677 https://www.cve.org/CVERecord?id=CVE-2021-25677 Référence CVE CVE-2021-31239 https://www.cve.org/CVERecord?id=CVE-2021-31239 Référence CVE CVE-2021-41544 https://www.cve.org/CVERecord?id=CVE-2021-41544 Référence CVE CVE-2022-25634 https://www.cve.org/CVERecord?id=CVE-2022-25634 Référence CVE CVE-2022-37971 https://www.cve.org/CVERecord?id=CVE-2022-37971 Référence CVE CVE-2022-39062 https://www.cve.org/CVERecord?id=CVE-2022-39062 Référence CVE CVE-2022-4304 https://www.cve.org/CVERecord?id=CVE-2022-4304 Référence CVE CVE-2022-45937 https://www.cve.org/CVERecord?id=CVE-2022-45937 Référence CVE CVE-2023-0286 https://www.cve.org/CVERecord?id=CVE-2023-0286 Référence CVE CVE-2023-24845 https://www.cve.org/CVERecord?id=CVE-2023-24845 Référence CVE CVE-2023-27411 https://www.cve.org/CVERecord?id=CVE-2023-27411 Référence CVE CVE-2023-28830 https://www.cve.org/CVERecord?id=CVE-2023-28830 Référence CVE CVE-2023-30795 https://www.cve.org/CVERecord?id=CVE-2023-30795 Référence CVE CVE-2023-30796 https://www.cve.org/CVERecord?id=CVE-2023-30796 Référence CVE CVE-2023-37372 https://www.cve.org/CVERecord?id=CVE-2023-37372 Référence CVE CVE-2023-37373 https://www.cve.org/CVERecord?id=CV

Official advisory
CERT-FR · French · CERTFR-2022-AVI-1094Multiples vulnérabilités dans les produits Siemens

d?id=CVE-2022-43517 Référence CVE CVE-2022-43722 https://www.cve.org/CVERecord?id=CVE-2022-43722 Référence CVE CVE-2022-43723 https://www.cve.org/CVERecord?id=CVE-2022-43723 Référence CVE CVE-2022-43724 https://www.cve.org/CVERecord?id=CVE-2022-43724 Référence CVE CVE-2022-44575 https://www.cve.org/CVERecord?id=CVE-2022-44575 Référence CVE CVE-2022-44731 https://www.cve.org/CVERecord?id=CVE-2022-44731 Référence CVE CVE-2022-45044 https://www.cve.org/CVERecord?id=CVE-2022-45044 Référence CVE CVE-2022-45484 https://www.cve.org/CVERecord?id=CVE-2022-45484 Référence CVE CVE-2022-45936 https://www.cve.org/CVERecord?id=CVE-2022-45936 Référence CVE CVE-2022-45937 https://www.cve.org/CVERecord?id=CVE-2022-45937 Référence CVE CVE-2022-46140 https://www.cve.org/CVERecord?id=CVE-2022-46140 Référence CVE CVE-2022-46142 https://www.cve.org/CVERecord?id=CVE-2022-46142 Référence CVE CVE-2022-46143 https://www.cve.org/CVERecord?id=CVE-2022-46143 Référence CVE CVE-2022-46144 https://www.cve.org/CVERecord?id=CVE-2022-46144 Référence CVE CVE-2022-46265 https://www.cve.org/CVERecord?id=CVE-2022-46265 Référence CVE CVE-2022-46345 https://www.cve.org/CVERecord?id=CVE-2022-46345 Référence CVE CVE-2022-46346 https://www.cve.org/CVERecord?id=CVE-2022-46346 Référence CVE CVE-2022-46347 https://www.cve.org/CVERecord?id=

Official advisory
03

Patch and workaround

Operational remediation based on structured source evidence.

Status
?Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.
Patch available
Affected
APOGEE PXC Compact (BACnet); APOGEE PXC Compact (P2 Ethernet); APOGEE PXC Modular (BACnet); APOGEE PXC Modular (P2 Ethernet); TALON TC Compact (BACnet); TALON TC Modular (BACnet)
Fixed
An authoritative update reference is available, but the fixed version is not recorded in the structured CVE fields. Check the linked vendor advisory for the applicable release.
Action
Update to V2.8.20 or later version
Workaround
No verified workaround is recorded. If business-safe, reduce exposure to the affected interface and allow only trusted sources until authoritative guidance is available.
04

Evidence and provenance

Published 13 Dec 2022 · Last source change 21 Apr 2025, 13:43 UTC · CWE-284 · Improper Access Control

CVE recordCVE.org · 5.1
CVSS sourceCNA
EPSS source
?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.
FIRST · tracked since 2026-08-14
European sourceENISA EUVD · EUVD-2022-48779
Product sourceVendor CSAF · Siemens ProductCERT
Remediation sourceVendor CSAF · Siemens ProductCERT
CWE sourceCNA
NVD statusNVD modified after enrichment

Core structured fields are present and their contributing authorities are shown above.

Material change intelligence

What changed after publication

View recent updates →

No material field changes have been recorded since change tracking began. Routine source refreshes and cosmetic edits are intentionally excluded.

Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
Fixed release or patch reference recorded
ENISA EUVD · EUVD-2022-48779↗Vendor CSAF · Siemens ProductCERT↗CVE authority or vendor reference↗Official CVE record (CNA and ADP data)↗NVD record↗
Technical terms and abbreviations used in this report
CVE
Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS
Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS
Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE
Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA
CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP
Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD
National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT
A computer security incident response team that publishes warnings or coordinates incident response.
PoC
Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF
Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL
Living off the land: abuse of legitimate tools or system functions during an attack.
Free version - for non-commercial use only.CVE-2022-45937 · cve.blacktree.nl